AME vs PNR vs DHR vs ROP

For growth investors, Roper Technologies, Inc.

(ROP) is the stronger pick with 12. 3% revenue growth year-over-year, versus 2. 3% for Pentair plc (PNR). Pentair plc (PNR) offers the better valuation at 19. 9x trailing P/E (14. 8x forward), making it the more compelling value choice. Analysts rate AMETEK, Inc. (AME) a "Buy" — based on 29 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, Pentair plc (PNR) is the cheapest at 19.

9x versus AMETEK, Inc. at 36. 6x. On forward P/E, Pentair plc is actually cheaper at 14. 8x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Pentair plc wins at 1. 13x versus Danaher Corporation's 34. 35x — a reasonable growth-adjusted valuation.

Over the past 5 years, AMETEK, Inc.

(AME) delivered a total return of +74. 5%, compared to -21. 1% for Danaher Corporation (DHR). Over 10 years, the gap is even starker: AME returned +423. 4% versus ROP's +115. 0%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Roper Technologies, Inc.

(ROP) is the lower-risk stock at 0. 43β versus Pentair plc's 1. 22β — meaning PNR is approximately 186% more volatile than ROP relative to the S&P 500. On balance sheet safety, AMETEK, Inc. (AME) carries a lower debt/equity ratio of 21% versus 47% for Roper Technologies, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Roper Technologies, Inc.

(ROP) is pulling ahead at 12. 3% versus 2. 3% for Pentair plc (PNR). On earnings-per-share growth, the picture is similar: AMETEK, Inc. grew EPS 7. 9% year-over-year, compared to -4. 7% for Danaher Corporation. Over a 3-year CAGR, ROP leads at 13. 7% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

AMETEK, Inc.

(AME) is the more profitable company, earning 20. 0% net margin versus 14. 7% for Danaher Corporation — meaning it keeps 20. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ROP leads at 28. 3% versus 20. 5% for PNR. At the gross margin level — before operating expenses — ROP leads at 69. 2%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Pentair plc (PNR) is the more undervalued stock at a PEG of 1. 13x versus Danaher Corporation's 34. 35x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, Pentair plc (PNR) trades at 14. 8x forward P/E versus 29. 1x for AMETEK, Inc. — 14. 3x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for PNR: 43. 8% to $113. 56.

All stocks in this comparison pay dividends.

Pentair plc (PNR) offers the highest yield at 1. 3%, versus 0. 5% for AMETEK, Inc. (AME).

For long-horizon retirement investors, Roper Technologies, Inc.

(ROP) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 43), 0. 9% yield, +115. 0% 10Y return). Both have compounded well over 10 years (ROP: +115. 0%, PNR: +126. 9%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

These companies operate in different sectors (AME (Industrials) and PNR (Industrials) and DHR (Healthcare) and ROP (Industrials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.